L.U.S.H.L.U.S.H.Liquor’s Ultimate Service Handler

Mike MartinPezh ShoureshiAndrew SchmidHeather BunaTaymoor Marar

EE Capstone Design LabSpring 2004

Presentation Outline Overview

Objectives Description

Hardware and Interfaces Block Diagram Processor FPGA EPROM SRAM LCD Keypad Bill Acceptor Pumps

Software Pseudo Code

Parts List Current Progress

Processor Valve and Pump Test

Schedule Milestone Goals Current Schedule Division of Labor

Conclusion

Objectives Design and implement a mixed

drink/single shot vending machine that will:• Provide a drink menu according to available

liquor / mixers

• Pour specific drinks

• Track alcohol and mixer amounts in machine

• Accept Payment (Cash or PIN debit accounts)

• Allow quick-loading with barcode reader wand

Purpose Can be used at parties to pour

drinks for guests, eliminating the need for a bartender.

Can be used at bars and sporting events to help relieve lines.

Can be used at bars/restaurants by cocktail wait staff.

Physical Description L.U.S.H will be a rectangular box

with six alcohol/mixer bottles on top

L.U.S.H. will have a bill acceptor, LCD screen, barcode reader and numeric key pad on the front side

L.U.S.H General Configuration

Block Diagram

Processor

Motorola MC68HC000 68 pin PLLC 16/-32 bit

microprocessor architecture

16-bit data bus 24-bit address bus Capable of addressing

over million bytes of memory.

8MHz clock speed

Processor Bus Schematic

U1

68000D

A129

A230

A331

A432

A533

A634

A735

A836

A937

A1038

A1139

A1240

A1341

A1442

A1543

A1644

A1745

A1846

A1947

A2048

A2150

A2251

A2352

AS6

CLK15

BG11

EN20

D05

D14

D23

D32

D41

D564

D663

D762

D861

D960

D1059

D1158

D1257

D1356

D1455

D1554

FC028

FC127

FC226

LDS8

R/W9

UDS7

VMA19

IPL025

IPL124

IPL223

BR13

BERR22

BGACK12

DTACK10

HALT17

RST18

VPA21

CLOCK

DTACK

FPGA

Data Line4.7K

5V

Reset

U2

MM74HC245A

DIR1

A89

B811B712B613B514B415B316B217B118

G19

A12

A23

A34

A45

A56

A67

A78

U3

MM74HC245A

DIR1

A89

B811B712B613B514B415B316B217B118

G19

A12

A23

A34

A45

A56

A67

A78

U4

MM74HC245A

DIR1

A89

B811B712B613B514B415B316B217B118

G19

A12

A23

A34

A45

A56

A67

A78

U5

MM74HC245A

DIR1

A89

B811B712B613B514B415B316B217B118

G19

A12

A23

A34

A45

A56

A67

A78

U6

MM74HC245A

DIR1

A89

B811B712B613B514B415B316B217B118

G19

A12

A23

A34

A45

A56

A67

A78

FPGA

Xilinx XCS10 FPGA Programmable logic using 84-pin

PLCC. Chip Select using 4/16 decoding. Using counter to time duration of

liquid dispensing.

FPGA SchematicU1

XC4005E/LCC

I/O26

I/O18

I/O19

I/O20

I/O23

I/O24

I/O25

I/O27

I/O28

I/O38

I/O39

I/O40

I/O44

I/O45

I/O46

DONE53

CCLK73

PGM55

I/O47

O/M130

O/TDO75

I/M032

I/M234

I/O/A16/PGCK113

I/O/A1714

I/O/A83

I/O/A94

I/O/A105

I/O/A116

I/O/A127

I/O/A138

I/O/A149

I/O/A15/SGCK110

I/O/A0/WS77

I/O/A1/PGCK478

I/O/A2/CS179

I/O/A380

I/O/A481

I/O/A582

I/O/A683

I/O/A784

I/O48

I/O49

I/O50

I/O62

I/O68

I/O/D0/DIN71

I/O/D169

I/O/D267

I/O/D365

I/O/D461

I/O/D559

I/O/D658

I/O/D756

I/O/CS060

I/O/DOUT/SGCK472

I/O/HDC36

I/O/INIT41

I/O/LDC37

I/O/PGCK235

I/O/PGCK357

I/O/RDY/BUSY/RCLK70

I/O/RS66

I/O/SGCK229

I/O/SGCK351

I/O/TCK16

I/O/TDI15

I/O/TMS17

A23A22

A21A20

R/W

ASDTACK

C E

CS0CS6

CS2

CS5CS1 CS4

CS3

CS7

EPROM

AMD AM27C512 EPROM 28 pin DIP 64K x 8-bit Using two chips in

order to obtain a 16-bit connection.

1 chip for low byte and 1 chip for high byte.

EPROM SchematicData Line

FPGA

Address LineU2

27512

A010

A19

A28

A37

A46

A55

A64

A73

A825

A924

A1021

A1123

A122

A1326

CE20 OE/VPP22

A1427

VCC28

A151

O011

O112

O213

O315

O416

O517

O618

O719

U3

27512

A010

A19

A28

A37

A46

A55

A64

A73

A825

A924

A1021

A1123

A122

A1326

CE20 OE/VPP22

A1427

VCC28

A151

O011

O112

O213

O315

O416

O517

O618

O719

SRAM

Samsung K6T4008C1B SRAM 32 pin DIP 512K x 8 bit Using two chips in

order to obtain a 16-bit connection.

1 chip for low byte and 1 chip for high byte.

SRAM Schematic

U3

KM681000

A012

A111

A210

A39

A48

A57

A66

A75

A827

A926

A1023

A1125

A124

A1328

A143

A1531

A162

D113

D214

D315

D417

D518

D619

D720

D821

VCC32

OE24

WE29

CS122

CS230

U4

KM681000

A012

A111

A210

A39

A48

A57

A66

A75

A827

A926

A1023

A1125

A124

A1328

A143

A1531

A162

D113

D214

D315

D417

D518

D619

D720

D821

VCC32

OE24

WE29

CS122

CS230

FPGA

Address Line

Data Line

LCD Screen

Optrex DMC20434N LCD 20 characters x 4

lines 5 x 8 dots per

character 5V DC operation Communicates

with processor via the data bus

Keypad

Grayhill Series 96 4x4 Keypad 4x4 Keyboard with

easily customized legends.

Uses a matrix circuitry. 1,000,000 operations

per button. Compatible with high

resistance logic inputs. Uses the 74922

decoder.

Bill Acceptor

MARS LE3000 Bill Acceptor Switch selectable for $1,

$2, $5, $10, $20, $50, and $100 bill acceptance.

Magazine can hold 400 bills.

65 Watts at 24 VAC, 60 Hz

Uses pulses to designate bill denomination.

Flash Diagnostic Code LEDs.

Pumps

Trico Universal Washer Pump Variable Voltage

3V-12V DC Variable Speed

Depending on voltage

On or off with power

Memory Mapping $000000 – EPROM $100000 – SRAM $200000 – LCD Screen $300000 – Keypad/Decoder (74922) $400000 – Pumps (Using a latch) $500000 – Bill Acceptor (MARS LE3000) $600000 – Barcode Reader $700000 – 16550 Serial Port (If needed)

User Interface SoftwareMain(){

Idle() {

Output to LCD “BUY A DRINK ADMIN MENU”

Wait for keypad hitIf “buy drink” selected

Sale_mode( )If “Admin menu” selected

Admin_mode( )}  }

Sale Modesale_mode()

{

menu_load()

scans inventory

loads menu

 

select_drink()

menu is printed to LCD screen

user scrolls down menu and selects drink

user selects size

request_payment()

(only if payment mode is enabled)

Output to LCD “INSERT CASH

ENTER PIN”

User selects payment method, pays

pour_drink()

Output to LCD “THANK YOU

HIT ANY KEY WHEN READY”

User hits key, drink is poured

Loop back to main

}

Administrator ModeAdmin_mode(){

select_option()output to LCD “LOAD ALCOHOL/MIXERS

PIN ACCOUNTS PAYMENT MODE

EXIT ADMIN. MODE”User selects option

 Load_alcohol()

Use bar code reader to scan bottle barcodeIf no barcode, scroll through list of alcohols/mixers

Pin_account()Output to LCD “LOAD NEW PIN

MODIFY PINS”If user wants to load a new pin:

Enter 4 digit pinEnter number of credits

If user wants to modify existing pinsScroll through a list of pinsSelect proper pin, modify credits/delete

 Payment_mode()

Output to LCD “ CASH ONLY PIN ACCOUNTS CASH/PINS ON THE HOUSE”

User selects payment typeLoop back to select_option()}

Parts list Embedded System Hardware

Motorola 68HC000 Two AMD AM27C512 EPROMS Two Samsung K6T4008C1B SRAMs One Xilinx XCS10 FPGA Five 74HC245 Drivers Many Analog Components

(resistors, capacitors, etc) 8 MHZ clock User Interface Components

DMC20434N LCD screen Barcode Reader Wand Grayhill Series 96 4x4 Keypad MARS LE3000 Bill Acceptor

Frame Hardware Wooden Cube 3.5’ x 2’ x 2’ with

2”x4” studs 6 feet plastic tubing 5/16”

diameter Tubing connectors Plexiglass covering for all sides 6 wiper fluid pumps

Current Progress Tested the solenoid valve idea and

decided it was unfeasible. Tested the pump idea and verified

the feasibility. Started wire-wrapping the proto-

board. Verified that the processor and

reset switch are working properly.

Solenoid Valve Test Built a test setup to

determine the feasibility of using the one-valve and two-valve systems.

Found that both systems had too much vacuum pressure to produce accurate liquid dispensing.

Pump Test Built a test set-up to

verify that a windshield washer pump will give us accurate pours.

Determined that the pumps will work in our system.

At 4V input voltage, one shot takes 7 seconds to pour.

At 6V input voltage, 8 oz. Of mixer takes 17 seconds to pour.

Proto Board

Processor and Reset Switch Test Hooked up our proto

board to the logic analyzer.

Tested that the stack pointer and program counter were working properly.

Verified that the reset switch was working.

Milestone goals Milestone 1

Rough Draft of Code All Hardware hooked up Bill Accepter/LCD screen/Scanner

wired up Milestone 2

Prototype box Working code

Current schedule

Division of Labor Programming: Heather and Andrew Bill Acceptor/Scanner/LCD screen: Pezh

and Andrew EPROM/SRAM/FPGA: Mike and Heather Pumps: Taymoor and Mike Building the LUSH exterior: Pezh and

Andrew Testing: Everyone User Manual: Everyone

Questions